Stream-motor.



. P. J. HANSEN.

` 'STREAM MOTOR. APPLICATION FILLED MAR.26, 1907.

922390, Patented May 25, 1909.

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P. J. HANSEN.

STREAM MOTOR.

APPLICATION FILED MAB. 26, 1907.

922,890. Patented May 25,1909.

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P. J. HANSEN.

STREAM Mo'ro. y APPLICATION FILED HARM, 1907.

Patented May 25, 1909.

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PEDER JRGEN HANSEN, OF FERSLEV, NEAR SKIBBY, DENMARK.

STREAIVLMOTOR.

Application led March 26, 1907.

To all whom it may concern.'

Be it known that l, Panna JRGEN HAN- SEN, master carpenter, subject of Denmark, residing at Ferslev, near Skibby, in the Kingdom of Dennnirk, have invented certain new and useful Improvements in Stream-Motors, of which the following is a specification.

This invention relates to a stream motor, that is, a water wheel adapted to be placed in a water current to utilize the energy of the stream, so that it may drive one or more machines placed ashore.

The motor consists of a machine frame placed upon pontoons in the current and having bearings for two liorizontal motor shafts, to each of which is 'fixed two chain wheels, around which is laid an endless chain whose joints are formed of paddles. The lower half of the chain lies in the stream, and the paddles are formed in such a manner, that they may be moved in either direction, dependent on the direction of the stream, thereby turning the chain wheels and their shafts at either side. The rotation of the shafts is by means of suitable transmissions transmitted to motor shafts placed ashore, from which the machine or the machines in question are moved. The stream motor is especially characterized thereby, that it rests upon a single sub-marine pontoon, which lies so deep in the water, that the waves'can. have no influence upon the stability of the motor, and by a smaller pontoon lying in the surface of the water above the 'first named pontoon and 'fixed to the frame of the motor; the little pontoon assists in bearing the motor, prevents spattering of water, and forms together' with the sub-marine pontoon a channel, which is closed at the top and bottom and through which the paddles move, this channel may also be closed at the sides by means of wooden walls or the like placed. between the pontoons.

The invention is illustrated in the accomp anying drawings, in which,

Figure l is an elevation of the motor, Fig. 2 is a plan view of the same showing only some of the paddles; Fig. 3 is a diagrammatical section view, showing the connection between the stream motor and the machine ashore; Fig. 4. shows one of the transmissions between the shafts of the motor and the shaft of the motor placed ashore, and, Fig. 5 is a perspective view of the entire streammotor.

Specification of Letters Patent.

Patented May 25, 1909.

Serial No. 364,587.

lt is assumed that the stream-motor is placed below al bridge and rests upon the submarine pontoon ai, whose width corresponds to the distance between the piers or the sides of the current. tor frame b having at each end bearings c for two horizontal cross shafts d, d. he shafts are at each side of the frame provided with a chain-wheel or star-wheel e 'fixed to the shafts and around these two pairs of wheels is laid the endless chain formed of double paddlesf, which are connected with each other by means of hinge bolts g having at their ends rollers 72 which run upon upper and lower rails along the sides of the frame and engage in the recesses of the chainewheels (see Figs. l and 5), so that the paddles will always travel at the same height.

The paddles or blades j' are, by means of rigid stays 2 and triangular side-plates Yl', connected. to the hinge-bolts y (Figs. l, 2 and 5) in such a manner that the middle of the blades always moves in the level of the rails upon which the rollers 7L run. By this arrangement the action of the blades or paddles is highly improved and all injurious stress upon the blades or paddles is avoided, as the stress always will be in the middle of the blades.

The pontoon a lies so deep in the water that the lower half of the chain is normally below the surface so that the stream will move the chain to either side and thereby rotate the chain-wheels e and shafts d. Between tlie two chain-wheels and above the lower parts of the chains the frame carries a lesser pontoon or air box t' lying in the surface of the water. In Fig. 1 the sides of the channel formed by the pontoons are closed by means of boards or the like.

One end of the shafts d has a pinion, a toothed wheel or a chain-wheel from which the motion is transferred to the shafts placed ashore; as shown in Fig. 3 the shafts 7' may be provided with a 'fixed and a loose belt-pulley, and Z respectively, so that a machine m, for instance a dynamo, may be driven by the shafts. lNhere the direction of the stream shifts, the arrangement may be selected in such a manner that the rotation is transmitted in opposite directions to the two shafts (Fig. l), the dynamo being then driven from either of these shafts aecording to the direction of the stream.

ln order to direct the movements of the The pontoon carries the moi lOO llt)

motor, when the water is rising or falling, so that these movements may be vertical, guide rollers o and p run along two planes arranged at right angles to each other on the side walls of the piers or the current (Fig. 2) so that the up and down movements are accurately guided.

Where the height of the water is very variable, the transmission between the shaft cl and j is referably arranged as shown in Fig. 4, in w iich the end of the shaft d is provided with a conical pinion r intermeshing with another conical pinion s, placed in a swing-frame. Through the pinion s the transmission shaft t is carried in such a manner that it will be rotated together with the pinion, while at the same time the pinion can freely be moved up and down along the shaft. At the upper end the shaft t has bearings in another swing-frame and is rigidly connected with a conical pinion u intermeshing with a conical pinion v on the shaft y'. By means of this device the transmission of the power from the shafts d to the shafts 7' will never be prevented by variations of the height of the water, and the transmission shaft will always regulate itself.

In order to lift the stream motor out of the water in case of drift of ice or of repair piston pipes or hydraulic hand-jacks :c of known construction are provided at both sides. When moved in a known manner these handjacks will lift the motor, which may then be suspended into hooks z placed in the bridge beams (Fig. 3).

Having now described and ascertained the nature of my said invention and in what manner the same is to be performed l declare that what l claim is:

l. In a stream motor, the combination with a frame, chain wheels mounted upon horizontal shafts in said frame, and an endless chain surrounding said chain wheels and composed of paddles plunging into the water and moved thereby 'to cause the chain wheel shafts to rotate, of a single submarine pontoon carrying said frame and so charged that it lies so deep in the water that the waves cannot change the vertical position of the motor, and a small surface pontoon secured to the frame and lying inthe surface of the water above the first named pontoon, said small pontoon assisting in bearing the motor, preventing spattering of water and forming together with the submarine pontoon a channel closed at the top and bottoni through which channel the paddlesmove.

2. ln a stream motor, the combination with a frame mounted upon a submarine pontoon, and chain wheels mounted upon horizontal shafts in said frame, of an endless chain surrounding said chain wheels and composed of paddles vyf, hinge-bolts g, rigid stays 2 and triangular side-plates 1,` which latter connect the paddles to the hinge-bolts in such a manner that the stress acts upon the middle of said paddles when the chain moves through the water.

In testimony whereof I affix my signature in presence of two witnesses.

FEDER JORGEN HANSEN.

Vilitnesses Anous MOLLER, HAROLD FROST. 

